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Germination responses of a Saharan species Henophyton deserti Coss. & Durieu to temperature and water stress

hal.structure.identifierUniversité de Sfax
dc.contributor.authorDERBEL, S.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorTOUZARD, Blaise
hal.structure.identifierUniversité de Sfax
dc.contributor.authorCHAIEB, M.
dc.date.accessioned2022-10-12T12:44:13Z
dc.date.available2022-10-12T12:44:13Z
dc.date.issued2010
dc.identifier.issn0251-0952
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/157159
dc.description.abstractEnHenophyton deserti Coss. & Durieu, is an endemic Saharan plant of the Brassicaceae family. Experiments were conducted to assess the effects of temperature and water stress on seed germination. The germination responses of the seeds of H. deserti in complete darkness were determined over a wide range of temperatures (10°C, 15°C, 20°C, 25°C, 30°C, 35°C) and different water potentials (−0.2, −0.6, −0.8, −1.0, −1.2, −1.4, −1.6, −2.0 MPa) induced by polyethylene glycol (PEG-6000) in order to verify their resistance to drought conditions. Germination was inhibited by either an increase or decrease in temperature from the optimal temperature (20°C) and decreased with a decrease in water potential at all temperatures. An interaction between water potential and temperature yielded no germination at −2 MPa. An understanding of these factors is crucial for successful regeneration and recruitment of these long lived Saharan plant species.
dc.language.isoen
dc.publisherInternational Seed Testing Association Ista
dc.subjectGERMINATION DE LA GRAINE
dc.subject.enHENOPHYTON DESERTI
dc.title.enGermination responses of a Saharan species Henophyton deserti Coss. & Durieu to temperature and water stress
dc.typeArticle de revue
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalSeed Science and Technology
bordeaux.page646-654
bordeaux.volume38
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.issue3
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02665060
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02665060v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Seed%20Science%20and%20Technology&rft.date=2010&rft.volume=38&rft.issue=3&rft.spage=646-654&rft.epage=646-654&rft.eissn=0251-0952&rft.issn=0251-0952&rft.au=DERBEL,%20S.&TOUZARD,%20Blaise&CHAIEB,%20M.&rft.genre=article


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